Away from the ganglion The axon of a
ganglionic neuron is called a postganglionic fiber because it carries impulses.
an accumulation of extracellular fibrillar proteins and abnormal
dendrites and axons. A “ganglion”
is essentially a living relay. The inputs are “pre-ganglionic” and the outputs
are “post-gangionic.” Simple.
Answer:
e) Invertebrates lack a nervous system
Explanation:
One of the main characteristics of invertebrates is that they don't have a backbone. Backbones belong to the skeletal system. A totally different story is the nervous system which runs inside the backbone. Although the more complex nervous systems appear in vertebrates the simply fact of having eyes like crabs or insects implies having a nervous system that can control them.
Cellulose is a carbohydrate which is present in the plant cells. The cellulose is a polymer with glucose as the monomer units. The monomer units of cellulose is attached by the beta linkages. The cellulose provides structural support to the plant cells by forming micro-tubules. The humans cannot eat the diet rich in cellulose because they lack the enzymes that are needed to digest them. Some animals, such as cows and termites have these enzymes but not the humans.
Hence, the answer is 'people cannot digest cellulose'.
Homologous structures are structures (body parts/anatomy)
which are similar in different species because the species have common descent.
They may or may not perform the same function. An example of homologous
structures is the forelimb structure shared by cats and whales.
Brown fur (p) is dominant
White fur (q) is recessive
p2 + 2pq + q2 = 1
If 20 out of 100 have white fur (qq only), then q2 = 20% = 0.20
Recessive allele (q) = sr(q2) = sr(0.2)
--> q = 0.447 = 44.7%
